# How do you solve 4x^2 + 3x - 7 = 0?

Aug 5, 2015

Solve: y = 4x^2 + 3x - 7 = 0.

Ans: 1 and $- \frac{7}{4}$

#### Explanation:

Since a + b + c = 0, use the shortcut --> 2 real roots: 1 and $\left(\frac{c}{a} = - \frac{7}{4}\right)$
Reminder of Shortcut .
When (a + b + c = 0) --> 2 real roots: 1 and c/a
When (a - b + c = 0) --> 2 real roots: - 1 and -c/a
Remember the Shortcut. It will save you a lot of time and effort.